1)Optimum Operating Voltage: 17.3V
2)Optimum Operating Current: 4.62A
3)Open Circuit Voltage: 21.3V
4)Short Circuit Current: 5.78A
5)Maximum Power: 50W
6)Maximum System Voltage: 715V
7)Operating Temperature: -40-+85
8)Dimension: 975*665*40mm
9)Number of cells and connects: 4*9PCS
10)Weight: 8kg